Represents the event sent and received from an Event Hubs stream. It contains the body of the event, a user-defined property bag, and various metadata
describing the event, such as its offset in the partition and its number in the stream sequence. Partitions are filled with a sequence of event data.

Represents the consumer group within an Event Hub. This class creates receivers for a specific consumer
group within an Event Hub. This can be the default consumer group or another user-created consumer group.

The exception that is thrown to signal session lock lost errors.In the case of partitioned messaging entities, partitions sometimes move to achieve load balancing across Service Bus nodes; for example, when a node restarts or new nodes are added to share the load. When that happens, session locks can be lost, but messages are never lost. If a partition moves after the session is locked, then the acknowledge/complete message processing call fails, because the lock is lost. However, the message remains and you can try to read it again. Thus, you may receive a
SessionLockLostException exception even though the message itself is not lost. In this case, you can retry the message processing operation.

Provides methods for event processors. Applications must implement this interface,
which enables the handling of events from Event Hubs. This interface is the main extensibility point for the
EventProcessorHost and
RegisterProcessor<T>(Lease, ICheckpointManager).